PSY 105 Chapter Notes - Chapter 3: Oligodendrocyte, Reuptake, Brainstem
Document Summary
Neuroimaging=techniques that allow for studying brain activity and structure by obtaining visual images in awake humans: types, mri magnetic resonance imaging, ct computed tomographic, pet positron emission tomography. Central nervous system (cns: comprised of brain and spinal cord, decisions come out. Spinal cord carries information to and from the brain. Sympathetic nervous system: activated under conditions of stress --> fight or flight, ex. when you hear rustling in the bush when taking a hike, heart rate. Longitudinal fissure divides brain in left and right hemispheres: all connected by the corpus callosum -> thick band of nerve fibres connecting the hemispheres. Pre-frontal cortex: most anterior portion of frontal lobe, working memory, moral reasoning, mood regulation. Sensory cortex: registers sensory neurons (touch, motor cortex, registers the motor neurons (muscles, association cortex, registers complex functions including higher-order sensory processing, integrating information from different senses, thinking, planning. Four lobes of the cortex: occipital lobe.
